Acetylene torch with angularly adjustable tip



March 2, 1954 c'. DIETERICH 70, 8

ACETYLENE TORCH WITH ANGULARLY ADJUSTABLE TIP Filed March 2, 1949INVENTOR. 4 CHARLES UIETERICI-I Patented Mar. 2, 1954 TED, STATES PATENTomce AosTYtENE roRoH WITH ANGUtAaLY ADJUSTABLE TIP v Charles niterieigisaiia rang, NJVY. Ap licant smash 2, 194; serial N61791::

2 cents:- (Cl.'1 58 27.4)

This invention relates to new and useful im'- provements in heads foroxyacetylene torches. lllMore particularly, the present inventionproposes the construction of an improved head for a torch adapted toburn a mixture of oxygen and acetylene gas for'the purpose of fusingmetal for cutting, welding, etc., and more especially, the inventionproposes such a head which may be adjusted in a manner to angularlyadjust theposi- .tion of the fiame-emitting tip with relation to thelongitudinal axis of the torch handle.v lfileretofore, it has beencommon practice to provide oxyacetylene torches with fixedly mountedheads and to provide each torch with several different angularlyextended heads to be interchanged with the head being used so. as toadapt the torch to the particular needs of a certain job. However, theneed to interchange heads is wasteful of time and ofttimes workmen havecontinued with the head in use regardless of whether the head being usedwas suited to the job or not with the result that workmen have pitcsuffered serious burns and other mishaps as a result of failing tointerchange the heads to adapt the torch to the particular job beingdone. Thepresent invention proposes the construction of a head which maybe manually adjusted to change the angular disposition of the flameemitting tip with relation to the handle,eliminat-. ing the necessity tochange heads and the consequent dangers and mishaps resulting from thefailure to interchange the head.

another object of the present invention proposes forming the head ofseparate sections pivgtallyuconnected together, one of which isprovided, with a tip and the other of which is. coniiectedwith thetubeswhich extend longitudinallyijtrom, the torch handle in a manner so thatthe simple act of turning the sections relative to each other .willadjust the angular position of the tip. Another object of the presentinvention proposes -formingthe tip, carrying section with a convenientlylocated handle in a manner to be manually gripped for adjusting theangular-position'of the tip when the-head is hot as a resultqfbejngusei. I. Still another object of the present inventionproposesthe provision of novel-meansior holding thesections of the headin various adjusted positions relative to each other, into-which theyare manuallyturned for adjustingthe-an'gular position ofthe=tip.

"It is a-further object of the present invention to provide-noveladjustable heads for oxyacetyq lenaatorches-zwhichr ware? simpljei anddurable. and

which can be manufactured and sold at a teas s able cost. I For furthercomprehension of the invention, andof, the objects and advantagesthereotreferf ence will be had to the following description andaccompanying drawings, and to the appended claims in which the variousnovel features of the invention are more particularly setforthtj In theaccompanying drawings forming a ma terial part of this disclosure; Fig.1 is a side elevational view of an oxy'acetyl lene torch having animproved head constructed in a'ccordance with the present invention.Fig. 2 isa plan view of a portion of Fig. l, but with the tip turnedinto lOngitudinal alignment with the handle of the torch. t v Fig. 3 isan enlarged side view of Fig 2 with portions thereof broken away toreveal interior constructions. h e Fig. 4 is a side elevational view ofthe head'fpr an oxyacetylene torch constructed in accordance with thepresent invention. r t Fig. 5 is a transverse enlarged se'ctionalviewtaken on the line 5 -5 of Fig. fl. Fig. 6 is an enlarged detailed 'viewof a portion of Fig. 5.- I Fig. 7'is an enlarged partial longitudinafsectional view taken onthe line 1-4 of Fig.2. The adjustable head foroxy'acetyle'n'e torches, according to the form of the inventionillustrated in Figs. 1 to '7, is applied to a cutting torchhaving ahandle 20 provided at one end with a"pair of threaded nipples 2| and 22.A rubber hose, not shown, from a source of oxygen is to be con-'-nected'to the nipple 2| and a second rubber hose; not shown, from asource of acetylene istobe connected to the nipple 22. The end of "thehandle 20, adjacent the nipples 2| and 22-ispr'o videdwith a'valve 23for controlling the flowof oxygen and a valve 24 for controlling theflow-of acetylene through the handle 26. At the other end 'of thehandle'20, there extends'the usual high pressure oxygen tube 25, lowpressureoxy gen tube 26 and acetylene tube 2T. The free ends of thetubes 25, 26 and 2'! are'connected with' a' head 28 to which the usualfiame eniitting tip 29 is connected by the usual tip'nut 30. One-"sideof the "handle 20'is provided with the usual'piv otally mounted highpressure lever 3L 1 The construction of the handle 28'," the tubes 25,26 and 21, the tip 29' and the tip nut-.30- is conventional and forms-nopart of thepresent invention. Therefore, further details of those partswill-not begiven in this specificationas such details'are generallyknown to those skilled intthe' art: a; :1 e richl The torch head 28, inaccordance with the present invention, is constructed of a separatemovable head section 32 and a separate fixed head section 33 havingadjacent faces in intimate contact. The movable head section 32 isformed with an offset boss 32 to which the tip 29 is connected by meansof the tip nut 30. Likewise, the fixed head section 33 is formed with anoffset boss 33 to which the ends of the tubes 25, 26 and 21 areconnected. As shown in Fig. 3, the boss 33 is formed with cavities 34into which the ends of the tubes 25, 23 and 21 are engaged.

The head sections 32 and 33 are pivotally connected together to beturned relative to each other by means of a rivet 35 which passesconcentrically through the head sections. The rivet 35 has its endsmilled over forming heads 36 which retain the sections 32 and 33turnably in position on the rivet 35. Interposed between the head 36 ofthe rivet 35 and the adjacent face of the head section 32 there iswasher 3'1.

The adjacent faces of the head sections 32 and 33 are formed withconcentric aligned grooves forming concentric circular chambers 38, 33and 40. The head section 33 is formed with a passage 4| which connectsthe end of the high pressure oxygen tube 25 with the circular chamber33. A second passage 42 is formed in the head section 33 connecting theend of the low pressure oxygen tube 26 with the circular chamber 43. Athird passage 43 connects the end of the acetylene tube 2! with thecircular chamber 33. The passages 41, 42 and 43 serve to transmit thehigh pressure oxygen, the low pressure oxygen or the acetylene from therespective tube 25, 25 or 2? to the respective chamber 35, 39 or iiiformed in the adjacent faces of the head sections 32 and 33.

The boss 32 of the head section 32 is formed at its outer end with a,mixing chamber 53 connected by means of a passage with the interior ofthe tip 29, see Fig. 3. The boss 32 is formed with a passage 48 extendedbetween the circular chamber 39 and the mixing chamber til for conveyingthe high pressure oxygen to the mixing chamber 44. A second passage l!is formed in the boss 32 connecting the circular chamber 59 with themixing chamber 44 for conveying low pressure oxygen to the mixingchamber 56. A passage 43 is formed in the boss 32 connecting thecircular chamber 38 with the mixing chamber 4% for conveying theacetylene to the mixing chamber.

The gases are conveyed to the mixing chamber 44 from the circularchambers 33, 33 and 55 by the passages 58, 4? and 48 where the turbulentaction of the gases entering the mixing chamber 44 causes the gases tobe thoroughly intermixed and from there the combustible mixture isconveyed to the flame-emitting tip 29 by the passage 45.

Between the circular chambers 23, 33 and 40, immediately outside thechamber 38 and immediately inside the chamber 43, the inner face of thefixed head section 33 is formed with projections 59 which engagecomplementary recesses formed in the adjacent face of the movable headsection 32 to seal the circular chambers 33, 39 and 49 against possibleloss of gas in all rotative positions of the sections 32 and 33. Asshown in Fig. 4, the projections 39 and recesses are triangular in crosssection.

The rivet 35 connects the sections 32 and 33 together with sufficientfrictional contact between their adjacent faces so that the movable headsection 32 will retain any pivoted position into which it is turned withrelation to the fixed head section 33. As the grooves forming thecircular chambers 38, 39 and 40 are in alignment in all rotativepositions of the sections 32 and 33 a clear passage is provided for thegases from the tubes 25, 26 and 21 through the passages 4|, 42 and 43,the chambers 38, 39 and 43, the passages 46, 41 and 48 to the mixingchamber 44 and through the passage 45 to the tip 29. By turning themovable head section 32 relative to the fixed head section 33, theangular position of the tip 29 is adjusted with relation to thelongitudinal axis of the handle 25 and the tubes 25, 26 and 21 adaptingthe torch to convenient use in out-of-the-way places without the dangerof subjecting the user to serious burns.

Also provided are convenient means for permitting the movable headsection 32 to be turned relativeto the fixed head section 33notwithstanding that the head 23 may be hot from being used. Inaddition, this form of the invention also includes a novel means forholding the movable head section 32 in a desired turned position withrelation to the fixed head section 33 to in turn retain the tip 29 in a,desired angular position with relation to the longitudinal axis of thehandle 25 and the tubes 25, 25 and 21.

The means for turning the movable head section 32 relative to the fixedhead section 33 is characterized by the fact that the rivet has arounded portion 35 which is rotatively extended through the fixed headsection 33. The remaining portion 35 of the rivet 35 is non-circular incross section and extended through a complementary hole formed in themovable head section 32, so that when the rivet 35' is turned themovable head 32 will be turned in one direction or the other relative tothe fixed head section 33 depending upon the direction in which therivet 35 is turned.

Means is provided to turn the rivet 35 to in turn move the movable headsection 32. This means comprises a handle 5| having a shank portion 52non-turnably mounted on the non-circular portion 35 of the rivet 35beneath the head 38 thereof. Radially extended from the shank portion52, there is a handle portion 53 by which the rivet 35 may beconveniently turned in one direction or the other. The handle portion 53is preferably formed of a heat resistant material.

The non-circular portion 35 of the rivet 35 and the complementary holeof the movable section 32 are preferably square in cross section.

The means for holding the movable head section 32 in a desired turnedposition with relation to the fixed head section 33 is characterized bya spring pressed ball 54 arranged within a cavity 55 extended in fromthe inner face of the movable section 32. The ball 54 is held inposition within the cavity 55 by a plate 55 which is welded in positionacross the inner face of the movable section 32 over the end of thecavity 55. An expansion spring 51 operates between the base wall of thecavity 55 and the ball 54, urging the ball 55 through a complementaryhole formed in the plate 55 and into engagement with one of a pluralityof complementary recesses 58' formed in the adjacent face of the fixedhead section 33. As shown in Fig. 6, the recesses 58 are arranged in anarcuate line arranged concentric with the rivet 35, and as the movablehead section 32 is turned, by means of the handle 5i, the ball 54 willsnap into and out of the recesses 53 until the desired adjusted positionof the tip 29 is reached. When that adjusted position is reached, theball 54 will be nested in the respecadjusted angular position.

The head of the present invention is illustrated applied to anoxyacetylene cutting torch; this is by way of illustration only and itis appreciated that the torch head of the present invention is equallywell adapted to use on welding and other similar type torches.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:

1. In a head of an oxyacetylene torch having a fixed head sectionconnected to a source of oxygen and acetylene and a movable head sectionpositioned adjacent one side of the fixed head section and carrying aflame-emitting tip, said sections having formed in adjacent facesthereof aligned concentric grooves defining separate chambers for saidoxygen and acetylene, the grooves in the face of the fixed head beingperatively connected to a source of oxygen and acetylene, the grooves inthe face of said movable head being operatively connected to saidflameemitting tip, means turnably connecting the head sections so thatthe position of the tip can be adjusted with relation to the fixed headsec tion, said connecting means comprising a rivet passing through thehead sections centrally with respect to said concentric grooves, saidrivet having a circular portion rotatively extended through the fixedhead section and a non-circular portion extended through a complementaryhole formed in the movable head section so that when said rivet isturned in one direction or the other the movable head section will besimilarly turned relative to the fixed head section for adjusting theangular position of the tip, a washer nonrotatively mounted on thenon-circular portion of said rivet adjacent the outer face of theadjustable head section, and a handle projecting radially from saidwasher for turning said rivet, and means for releasably holding themovable head section in a desired turned position relative to the fixedhead section.

2. In a head of an oxyacetylene torch having a fixed head sectionconnected to a source of oxygen and acetylene and a movable head sectionpositioned adjacent one side of the fixed head section and carrying aflame-emitting tip, said sections having formed in adjacent facesthereof aligned concentric grooves defining separate chambers for saidoxygen and acetylene, the grooves in the face of the fixed head beingoperatively connected to a source of oxygen and acetylene, the groovesin the face of said movable head being operatively connected to saidflame-emitting tip, means turnably connecting the head sections so thatthe position of the tip can be adjusted with relation to the fixed headsection, said connecting means comprising a. rivet passing through thehead sections centrally with respect to said concentric grooves, saidrivet having a circular portion rotatively extended through the fixedhead section and a non-circular portion extended through a complementaryhole formed in the movable head section so that when said rivet isturned in one direction or the other the movable head section will besimilarly turned relative to the fixed head section for adjusting theangular position of the tip, a washer non-rotatively mounted on thenon-circular portion of said rivet adjacent the outer face of theadjustable head section, and a handle projecting radially from saidwasher for turning said rivet, the fixed head section having a pluralityof recesses formed in its side facing the movable head section, saidrecesses being arranged in an arcuate line concentric with said rivet,and a spring pressed ball extending from the side of the movable headsection on the side facing the fixed head section and selectivelyengageable with said recesses for holding the movable head section inthe desired adjusted position relative to the fixed head section.

CHARLES DIETERICH.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 304,311 Greene Sept. 2, 1884 891,800 Enrico June 23, 19081,096,563 Rosenberg May 12, 1914 1,121,457 Bell Dec. 15, 1914 1,232,650Briggs July 10, 1917 1,255,745 Henricson Feb. 5, 1918 1,495,994 FarmerJune 3, 1924 1,498,859 Wekerle June 24, 1924 1,980,636 Roumillat Nov.13, 1934 2,130,219 Allison et al Sept. 13, 1938 2,170,305 Ingwersen Aug.22, 1939 2,188,069 Walsh June 23, 1940 FOREIGN PATENTS Number CountryDate 13,399 Great Britain June 3, 1911 600,349 France Nov. 4, 1925214,970 Switzerland May 31, 1941

